SIREGAR, K. I.; HARAHAP, A.; HASIBUAN, L. R. Pengaruh Model Pembelajaran Problem Based Learning Terhadap Hasil Belajar Matematika Siswa Smp Negeri 1 Rantau Selatan . Jurnal Penelitian Ilmu Pendidikan Indonesia, [S. l.], v. 3, n. 2, p. 354–359, 2024. DOI: 10.31004/jpion.v3i2.295. Disponível em: https://jpion.org/index.php/jpi/article/view/295. Acesso em: 29 apr. 2026.